Machine for treating lumber.



C. A. ROBINSON.

MACHINE FOR TREATING LUMBER. APPLICATION FILED MAR. a. 1917.

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Patented Aug. 21, 1917 3 SHEETSSHEET 1.

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C. A. ROBINSON.

Bafentd Aug. 21, 1917.

3 SHEETSSHEET 2.

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C. A. ROBINSON.

MACHINE FOR TREATING LUMBER.

', APPLICATION FILED MAR. 3, I917.

Patented Aug. 21, 1917.

3 SHEETSSHEET 3.

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TED STATES r'rnn'r oF m CI'IARLES A. ROBINSON, OF OKLAHOMA, OKLAHOMA.

MACHINE FOR TREATING LUMBER.-

Specification of Letters Patent.

Patented Aug. 21, 1917.

' Application filed March 3, 1917. Serial No. 152,338,

1 '0 all whom it may concern:

Be it known that I, CHARLES A. ROBINSON, a citizen of the United States, residing at Oklahoma city, in'the county of Oklahoma and-State of Oklahoma, have invented a new and useful Machine for Treating Lumber, of which the following'is a specification. The device forming the subject mattergof this application is adapted to be employed for treating lumber, and the invention aims to provide novel means whereby the wood maybe advanced, and be driedasit is ad vanced, a preserving liquid being applied to the wood, after it has been dried, and the surplus liquid being blown off the wood, before the wood is delivered, means being provided for conducting away the surplus preserving liquid.

To embody in an eificientworking machine the features' above mentioned is,

- broadlyspeaking, the object of the invention.

The invention aims, further, to improve and enhance the utility of devices of that general type hereinafter described.

With the above and other objects inview which will appear as the description proceeds, the invention resides in the eombina-- cordance with the presentqinvention, parts,

being broken away;

Fig.2 is a top plan of a machine of the figure being. separated into two parts showing, the respective ends of the machine, in order that sort hereinafter described, the

the parts may appear on'a suificiently large scale;

Fig. 3 is a cross section taken approximately on the line 3-3 of Fig.- 1;

Fig. I is a cross section taken approxi mately on the'line lt-. 1 of Fig. '1

Fig." 5 is a fragmental perspective-showing a portion ofthe conveyer; and Fig. 6 is a fragmental top plan, parts being broken joining pipes may appear clearly.

away in order that, the conclearly nections between one of the headers and ad I 'may pass In carrying out the present invention there, is provided a supporting structure which may be variously constructed without jeopardizing the utility of the device. In the present instance, but not of necessity,

the supporting structure includes base beams 1 from which rise posts 2. That end of the machine to which the reference letter A has been applied in Fig. 1, will be denominated the forward end of the machine, the rear end of the machine being denoted .by the reference letter B. Disposed at the forward end-of themachine are side plates-3 supporting a feed table 4:. .Arranged at the rear end of the machine are side plates 5 supporting a delivery table 6. A drive-shaft 7 is j ourn-aled in the side plates 3 and carries.

sprocket wheels8. A drive shaft 9 is journaled in the side plates 5 and carries sprocket wheels 10. The side plates 5 support a shaft 11 carrying sprocket wheels 12. The numeral 14 marks a shaft having sprocket wheels 15, theshaft 1 1 being carried by slide bearings 16 supported on the sideplates 3.. The numeral 17 denotes any suitable mechanism, whereby the slide bearings 16 may be moved longitudinally of the machine. Mounted on the base beams 1 are brackets 18 carrying wheels 19. Extended along the sides of the machine and carried by the posts 2 are supports 20 in the form The device includesv a belt conveyer 21, the links of which are pivotally connected together asshown at 22. At intervals, the side chains which make up the of angle bars.

- belt conveyer 21 are united byspacing rods 23 which may form pivotal connections between certam of the links of the chains.

Certain of the links of the oonstituentchains of the conveyer 21' are provided with upstanding fingers 50. The upper run of the chains of the conveyer slide, along the hori-..

zontal flanges of the angle bar supports 20, the chainsbe'ing held apart by the rods 23,

so that the chains will ride along the horizontal flanges of the supports 20 as aforesaid. The upper runs of the chains of the I belt conveyer engage the driving sprocket wheels 10 and 8 when passed around the Y sprocket wheels 12 and 15. The lowerruns ofthe constituent chains of .the belt con.- veyer are supported on the wheels19, the

wheels 19 being spaced from the posts 1 as shown in Fig. 3, to the end that the on thechainsofthe belt conveyer fingers 50 between the Wheelsand the. posts.

The belt conveyor maybe tightenedup by shifting the slide bearings 16 by the mechanisms indicated at 17.

Disposed intermediate the forward and rear ends of the machine is a transverse header 24L hav1ng,.as shown in Fig.3, a partiti'on 25 which extends longitudinally of the machine and divides the header into each pipe 26 communicates'with the header through the pipes may be secured.

pipes 26 are'in' a common horizontal plane, one pipe being disposed within the space on one side of the partition 25, and the other end of each pipe communicates with. the

header on the other side of the partition 25, so that the proper circulation of steam defined by the-side arms of the next ad'- joining pipe.

posts 2. From the header-24, a pipe 28 extends longitudinally of the machine to a transverse feed pipe 29', whereby-steam is supplied. From the header 24', a pipe 30 extends longitudinally of the machine to a steam return pipe 31'. The pipes 30 and 28 open into the-header2 l on opposite sides of the partition 25.

Rearwardly extended U-shaped pipes 33 open into the header 32 and extend rearwardly beyond the header 24! The pipes 33 are disposed at a lower level than are the pipes26. The pipes 33 are supported ona cross bar 34 connecting certain of the posts 2. From the header 32, a pipe 35'leads'to- I the return. pipe 31, a pipe 36 forminga conpending arm 38 connected with a pipe 39 nection between the header 32-and the pipe 29. a a

Disposed adj acent' the rear end" of the machine is an air bla'stpipe 37 having a de- Which extends longitudinally ofthe device.

The pipe 39 is providedwith transverse-nozsides. The numeral 42- has been used to designate a pipe whereby a 'preserving'liquid is supplied to the'timber, the pipe-l2= having a, depending arm 43 connected with a pipe extendedlongitudinally of the ma-- the belt conveyor 21 is a receptacle orpan 46' having an outlet 47- communieating with a transverse Fig. 4'. v

The numeral 49den0tes an overhead sup port carrying depending hangers '51- on The The pipes 26 may be sup- I ported on the cross bar 27', connecting the drain ipe {l8 as shown in scribed may be duplicated to anydesired extent, that-is. the machine may consist of any desired number 'of units like the one hereinbefore set forth, these units being disposed side by side, in orderthat timber of any length" may betreated.

The operation of" the device is as folloWs:'i I

Presupp'osing that the belt c'onveyer 21 is in motion," the timber is placed on the feed table 4 and is advanced manually until it'- is picked up by-the fingers 50 of thebelt conveyer. The timber is then advanced over the single bank of pipes 33, which projectfrom the header 32 and lie in advanceof the header 2%. Ultimately, the timber is advanced until it is above the pipes 26 which project-from the header 24 and also above those portions of the pipes 33 which'lie beneat-h the pipes 26. In this .way, theheat applied to the timber is increasec.

Disposed relatively near to theforwar'd end of the machine'is a transverse header 32, which is constructed like the header 245.

The timber then travels through the field the fingers 50 on the belt conveyer 21 ontothe delivery table: 6;

Steam is supplied from thepipe 29 and the pipe 28 to the header-'24 and thence to- 1 the/intake ends of: the U-shaped pipes 26, the steam being returned from the header zles 4-0. haying perforations 4L1 on-their under such as shooksor shingles are to-be't-reated, -then'the panels 54 are lowered by rotating the shafts 52-through the instrumentality Ofl the-gear trains 55: In thisway, the heat is confined to a single unit-of the machine. It is possible, however, to raise one or more setsof the panels 54, so that longerpieces of timber may be treated, twoormore units. being employed, it 'beingrecalled, as indie of the nozzle d5, and a preservingliquid,

cated at 58, that it is contemplated that the machine described may be duplicated to any desired extent, depending on the length of the material to be treated.

Having thus described the invention, what is claimed is 1. In a machine for treating lumber, a supporting structure; a belt conveyer mounted to traverse the supporting structure; a heater located within the contour of the belt conveyer adjacent the forward end of the supporting structure; a liquid applying means operating above the belt conveyer at the rear of the heater; and a blast device operating above the conveyer to the rear of the liquid applying means.

2. In a machine for treating lumber, a supporting structure; a belt conveyer traversing the supporting structure; a heater located within the contour of the belt conveyer and disposed adjacent the forward end of the supporting structure; an air blast mechanism operating above the conveyer at the rear end of the supporting structure; a liquid applying means operating above the belt conveyer between the heater and the air blast mechanism; a receptacle extended beneath the air blast mechanism and theliquid applying means; and a drain conduit wherewith the receptacle communicates.

3. In a machine for treating lumber,

a supporting structure; a belt conveyer mounted to traverse the supporting structure; a heater located within the contour of the belt conveyer adjacent the forward end of the supporting structure; an air blast mechanism operating above the belt conveyer at the rear end of the supporting structure; a liquid applying means operating above the belt conveyer between the heater and the air blast mechanism; vertically movable closures disposed on opposite sides of the belt conveyer; and means for raising and lowering the closures.

a. In a machine for treating lumber, a supporting structure; a conveyer traversing the supporting structure; a heater arranged adjacent the forward end of the device and located below a part of the conveyer; an air blast mechanism operating above the conveyer and disposed at the rear end of the device; a liquid applying means operating above the conveyer and disposed between the heater and the air blast mechanism; a receptacle located below the air blast mechanism and liquid applying means and below said portion of the conveyer; closures vertically movable at the sides of the conveyer;

i esa conve er traversin the su ort- I ing, structure above the pipes; means for applying liquid to the material on the conveyer, to the rear of the pipes; and means for applying an air blast to the material on the conveyer, to the rear of the means for applying liquid.

6. In a machine for treating lumber, a supporting structure; a header disposed transversely of the supporting structure and located intermediate the ends of the supporting structure a second header arranged adjacent the forward end of the supporting structure; U-shaped pipes of diflerent lengths connected with the respective headers and disposed on different elevations; means for supplying heat to the respective headers; a conveyer mounted to move above the pipes and the headers; means for discharging liquid onto the material on the conveyer, to the rear of the pipes; a receptacle disposed below the working portion of the conveyer and below said means; and vertically movable closures operating at the sides of the conveyer.

7. A machine for treating lumber embodying means for advancing the material to be treated; means for applying liquid to the material as it is being advanced; means for heating the material before the liquid is applied thereto; and a mechanism for applying an air blast to the material after the liquid has been applied thereto.

8. A machine for treating lumber embodying means for advancing the material to be treated; means for applying liquid to the material as it is being advanced; and means for heating the material while the material is being advanced and before the liquid is applied thereto.

In testimony that I claim the foregoing as my own, I have hereto afiixed my signature in the presence of two witnesses.

' CHARLES A. ROBINSON.

Witnesses:

G. L. BUCK, J. F. MARTIN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

Washington, D. G. 

